One problem related to other fuel system pump has been reported for the 2003 Ford Econoline. The most recently reported issues are listed below.
Fuel tank delamination. This will be the second time I have to replace the fuel tank, sending unit and fuel pump on my e350 diesel van. Ford has had known issues for several years regarding this problem and refuses to accept any responsibility. The inside coating of the tank peels away and clogs up the fuel system, then they turn around and sell you the same tank so it happens again. Very dangerous vehicle suddenly loses power and will even stall.